Commissioning Engineer

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• Competitive salary + Benefits on offer
  
• Opportunity to work with a leading HV/MV commissioning specialist contractor
  
• Exposure to hyperscale Data Centre and critical infrastructure projects
  
• Career progression within a high-growth engineering sector
  
• Ongoing technical training in HV systems, commissioning, and protection testing
  

A leading HV/MV commissioning specialist organisation based in Dublin is seeking an experienced HV Commissioning Engineer to join their growing team.

You will work on high-voltage and medium-voltage commissioning projects across Data Centres, Industrial, Utilities, and Power Infrastructure, delivering mission-critical electrical systems from pre-commissioning through to energisation and handover.

As an HV Commissioning Engineer, you will be responsible for the testing, commissioning, energisation, and validation of HV/MV electrical systems, ensuring compliance with industry standards, client specifications, and electrical safety regulations.

This role offers exposure to hyper-scale data centre projects, substations, and critical power infrastructure across Ireland.

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• Execute HV/MV commissioning, pre-commissioning, and energisation of electrical systems including switchgear (AIS/GIS), transformers, substations, protection relays, and cable systems.
  
• Perform FAT (Factory Acceptance Testing), SAT (Site Acceptance Testing), and functional testing, ensuring full system compliance and performance validation.
  
• Conduct electrical testing and commissioning activities, including:
  
• Insulation Resistance Testing (IR)
  
• Protection Relay Testing using Omicron CMC test sets
  
• Cable Testing (VLF, Hi-Pot)
  
• fault simulation and system verification
  
• Develop and implement commissioning procedures, test scripts, ITPs, RAMS, and method statements in line with project and regulatory requirements.
  
• Implement and enforce LOTO (Lock Out Tag Out), Permit-to-Work systems, and HV safety procedures, ensuring safe energisation and switching operations.
  
• Support and lead HV energisation activities, including switching operations and coordination with grid operators, DNOs, and stakeholders.
  
• Identify, troubleshoot, and resolve electrical faults, defects, and non-conformances, ensuring timely close-out prior to handover.
  
• Record, analyse, and report commissioning results, test documentation, and QA/QC records, supporting Integrated Systems Testing (IST) and final system validation.
  
• Liaise with clients, consultants, OEMs, and multidisciplinary teams to ensure successful project delivery and commissioning completion.
  

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• Degree, diploma, or trade qualification in Electrical Engineering / Power Engineering / Building Services Engineering.
  
• 3–10+ years’ experience in HV/MV commissioning, electrical testing, or commissioning engineering roles within: Data Centres, Substations / Utilities, Industrial / Power Projects
  
• Strong technical knowledge of: HV/MV switchgear (AIS/GIS), Transformers and substations, Protection relays and control systems, Critical power infrastructure (UPS, generators, distribution systems)
  
• Proven hands-on experience with: Omicron CMC testing equipment (relay testing & secondary injection), FAT / SAT / commissioning processes, LOTO procedures and HV safety systems.
  
• Knowledge of electrical standards and commissioning procedures (IEC, BS, EN standards preferred).
  
• Experience working on live HV systems, energisation, and switching operations in high-risk environments.
  
• Strong communication and coordination skills with ability to work with clients, OEMs, consultants, and project teams. xcfaprz
  
• Flexibility to travel for projects across Ireland and Europe.